John trageser



J. TRAGESER.

Beer C0o|er.- No. 32,542. I Patented June 11, 1861.

JoHN TRAGESER, on NEW YORK, N. Y.

APPARATUS roe EVAPORATING LIQUIDS.

Specification of Letters Patent No. 32,542, dated June 11, 1861.

To all whom it meg concern:

(Be it known thatI, JOHN TRAsnsnn, of the city, county, andj Stateof New Yorlghave invented certain new and useful Improve ments in Apparatus for Evaporating and Cooling Liquids; and I do hereby declare that the following a full, clear, and exact which is constructed of a series of pipes, laid one abovethe other or side by side and havmg their ends connected by-elbows or cross pipes and 1t consists n the arrangement of )ro'ectin an les on one or more sides of each pipe ezitending within a short distance of their endsin such a mannerythat sufficient room is obtained for the elbows or connecting pipes andat the same time an, unbroken corrugated surface is preserved. e

To; enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation with reference to the drawing. i

Coolers or evaporators of the ordinary construction are made of round pipes the ends of which are connected by elbows or by cross pipes. W'hen elbows are used, the thickness of the metal ofsaid elbows causes the adjoining pipes to be separatedthroughout their entire length and when cross pipes are. used, the. holes which receive the longitudinal or main pipes have to be drilled'a certain distance apart and an open space between the adj oining pipes becomes unavoidable.

expansion and contraction to which the pipes are subjected. causes them to warp and sag.

UNITED STATE PATENT OFFICE.

. if When the apparatus is in use,the continual u down in the middle and the liquid to be cooled oreva porated in following thecurvature of each pipe collects inthe .middle, thus rendering the largest portion of the evaporating or cooling surface ineffective. These difficulties I have avoided by connect ing thepipes A in such a manner that the ad o1n1ngp1pes are in close contact with each other from end to end, or nearly so and that a sagging down of the pipes is prevented and an unbroken surface is presented. In order to effect this purpose in the most conveni'ent manner, I have constructed my pipes with an angular projection. a, as clearly shown in Figs. 2 and 3, These angular projections terminate within a short distance of each end of the pipes leaving said ends round, so that the elbows B can be attached to them in the ordinary manner. The distance to which these angular projectionsare drawn out must be equal to the double thickness of. the metal from whiclrthe elbows are.

constructed, so that theadjoining pipes are in close contact with each other, almost durmg their entlrey lengths as clearlyshown in Fig.1 of the drawing. i e Instead of making the pipes with one projection each pipe might be made with-two projections as shown in Fig. 4, or it might be made oval or'in any other form, whereby the same object could be accomplished.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is,

The arrangement of one or more angular projections a on the sides-of the pipes A of a cooler or evaporator substantially as and for'the purpose shown and described.

- i I JOI-IN TRAGESER. Witnesses: i

W. HAUFF, J. F. Buc ner. 

